Fix inverted argument checking logic

diff --git a/scripts/functions b/scripts/functions
index a4c46b9..2eac61f 100644 (file)
--- a/scripts/functions
+++ b/scripts/functions
@@ -91,7 +91,7 @@ function isDirectoryEmpty
        shopt -s nullglob || *
 
        ignore_lostfound=1
-       test -z "$2" -o "$2" = 0 || ignore_lostfound=
+       test -n "$2" -a "$2" != 0 || ignore_lostfound=
        
        for i in "$1"/*; do
            case "$i" in